repos_ecs/Device/modbusrtu/modbusrtu.cpp

// MGE.cpp : 定义 DLL 的初始化例程。
//

#include "stdafx.h"
#include "CommRS232.h"
#include "Head.h"
#include "winsock2.h"
#include "ProtocolModbus.h"
#include <stdlib.h>
#include ".\modbusrtu.h"

#pragma   comment(lib,   "ws2_32.lib ")

vector<__COM_STRUCT> g_vtComStruct;
//vector<__BASIC_STRUCT> g_vtReadBasicInfo;

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

BOOL InitComm( int nAddr, int nCommPort, int nRate, int nDataBit, int nStopBit, int nParity, int nInterval );
int CommDataCollect(int nCommPort, int nAddr, SETBASEPARAM SetBasePara, int nDataLen, char chMsg[80]);
int GetCommIndex( int nCommPort, int nAddr );

// CMGEApp

BEGIN_MESSAGE_MAP(CModbusrtuApp, CWinApp)
END_MESSAGE_MAP()


// CMGEApp 构造

CModbusrtuApp::CModbusrtuApp()
{
	// TODO: 在此处添加构造代码，
	// 将所有重要的初始化放置在 InitInstance 中

}


// 唯一的一个 CMGEApp 对象

CModbusrtuApp theApp;


// CMGEApp 初始化

BOOL CModbusrtuApp::InitInstance()
{
	CWinApp::InitInstance();

	LOG4C((LOG_NOTICE, "Enter InitInstance"));
	return TRUE;
}

int CModbusrtuApp::ExitInstance()
{
	// TODO: 在此添加专用代码和/或调用基类

	// 关闭已经打开的串口
	for( unsigned int i = 0; i < g_vtComStruct.size(); i++ )
	{
		if( g_vtComStruct[i].pComm )
		{
			delete g_vtComStruct[i].pComm;
			g_vtComStruct[i].pComm = NULL;
		}
	}

	return CWinApp::ExitInstance();
}

/************************************************************************/
/*  函数：RTU_DLLInit[4/25/2016 Home];
/*  描述：对RTU设备发送采集数据指令;
/*  参数：;
/*  	[IN] nCommPort：串口号;
/*  	[IN] nAddr：指定的设备地址值;
/*  	[IN] SetBasePara：用于设置RTU设备的参数;
/*  	[IN] nDataLen：数据长度;
/*  	[IN] chMsg：请求的命令行;
/*  返回：void;
/*  注意：;
/*  示例：;
/*
/*  修改：;
/*  日期：;
/*  内容：;
/************************************************************************/
int RTU_DLLInit(IN int nCommPort, IN int nAddr, IN SETBASEPARAM SetBasePara, IN int nDataLen, IN char chMsg[80] )
{
	return CommDataCollect(nCommPort, nAddr, SetBasePara, nDataLen, chMsg);
}

void RTU_DLLUnInit()
{
	// 关闭串口，放到退出Dll时去关闭 ExitInstance
	return;
}

/************************************************************************/
/*  函数：RTU_DLLInitCom[4/25/2016 Home];
/*  描述：初始化串口;
/*  参数：;
/*  	[IN] nAddr：指定设备地址值;
/*  	[IN] nCommPort：串口号;
/*  	[IN] nRate：波特率;
/*  	[IN] nDataBit：数据位;
/*  	[IN] nStopBit：停止位;
/*  	[IN] nParity：校验位;
/*  	[IN] nInterval：超时值;
/*  返回：void;
/*  注意：;
/*  示例：;
/*
/*  修改：;
/*  日期：;
/*  内容：;
/************************************************************************/
BOOL RTU_DLLInitCom( int nAddr, int nCommPort, int nRate, int nDataBit, int nStopBit, int nParity, int nInterval)
{
	if (InitComm( nAddr, nCommPort, nRate, nDataBit, nStopBit, nParity, nInterval ))
	{
		LOG4C((LOG_NOTICE, "RTU_DLLInitCom return true"));
		return TRUE;
	}
	else
	{
		LOG4C((LOG_NOTICE, "RTU_DLLInitCom return false"));
		return FALSE;
	}
}

BOOL InitComm( int nAddr, int nCommPort, int nRate, int nDataBit, int nStopBit, int nParity, int nInterval )
{
	CCommAsyn *pComm = NULL;
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 )
	{
		pComm = new CCommRS232;
		PORTPARAM portParam; 
		portParam.StartAddr = nAddr;		//起止地址	
		portParam.PortNo = nCommPort;		//Com端口
		portParam.BaudRate = nRate;		//波特率
		portParam.ByteSize = nDataBit;	// Number of bits/byte, 4-8       
		portParam.StopBits = nStopBit;	/* 结束位 0,1,2 = 1, 1.5, 2               */
		portParam.Parity = nParity;		/* 校验位 0-4=None,Odd,Even,Mark,Space    */
		portParam.Interval = nInterval;	//间隔时间
		if(!pComm->InitParam(&portParam))
		{
			LOG4C((LOG_NOTICE, "Comm%d Open lost, nAddr = %d, Rate = %d, DataBit = %d, StopBit = %d, Parity = %d", 
				nCommPort, nAddr, nRate, nDataBit, nStopBit, nParity));
			delete pComm;
			pComm = NULL;
			return FALSE;
		}
		else
		{
			COM_STRUCT tagComStruct;
			tagComStruct.nAddr = nAddr;
			tagComStruct.nCommPort = nCommPort;
			tagComStruct.pComm = pComm;

			// 串口只打开一次且按顺序打开，不存在资源共享冲突，所以不用加保护 
			g_vtComStruct.push_back( tagComStruct );
		}
	}

	return TRUE;
}

int RTU_DLLRequestWrStatusData(int nCommPort, int nAddr, char *pData)
{

	return 0;
}


int RTU_DLLWrite(int nCommPort, int nAddr, SETBASEPARAM SetBasePara, double Data, int nDataLen)
{
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 ) return ERR_CODE_MODBUS_RTU_COM_FAULT;

	CCommAsyn *pComm = NULL;
	pComm = g_vtComStruct[nCommIndex].pComm;
	int iResult = pComm->WriteCommand(SetBasePara, Data, nDataLen);
	return iResult;
}

int CommDataCollect(int nCommPort, int nAddr, SETBASEPARAM SetBasePara, int nDataLen, char chMsg[80])
{
	int nCommIndex = GetCommIndex( nCommPort, nAddr );
	if( nCommIndex == -1 ) return ERR_CODE_MODBUS_RTU_COM_FAULT;

	CCommAsyn *pComm = NULL;
	pComm = g_vtComStruct[nCommIndex].pComm;
	return pComm->WorkMain(SetBasePara, nDataLen, chMsg);
}

int GetCommIndex( int nCommPort, int nAddr )
{
	for( int i = 0; i < (int)g_vtComStruct.size(); i++ )
	{
		if( g_vtComStruct[i].nCommPort == nCommPort)// && g_vtComStruct[i].nAddr == nAddr)
		{
			return i;
		}
	}

	return -1;
}